shahera, Umme, Nahida sultana, and Kazi MD Zafrul haq. “A Comprehensive Literature Review on the Pandemic Coronavirus Disease 2019 (COVID-19)”. Bangladesh Journal of Medicine 31, no. 2 (August 8, 2020): 94–101. Accessed April 16, 2024. https://www.banglajol.info/index.php/BJMED/article/view/48538.